Speed Control Cable Problems of Chrysler 300C

The main grounding wire passenger-side engine block contact point had corrosion(rust) limiting electrical current flow to the wiring harness. This caused too much current to flow to 2 smaller 16 gauge grounding wires attached to the rear of each hemi cylinder head to fry. This directly affects the ccn bus communications to the cpu. Any device, module, or sensor attached to the ccn bus can have intermittent behavior. Examples of very bad behavior in my car: 1. The alarm randomly going off while parked or when driving the car. 2. While parked and the alarm set the sunroof decided to open up during a rainstorm filling my car with 3 inches of rain. 3. The 300c doesn't use a throttle cable. It utilizes a throttle position sensor that communicates with the cpu over the ccn bus. Just touching the gas pedal was the same as pressing the gas pedal to the floor. It's a good thing that when this happened to me there was no traffic on the road and I was close to home. Since this is ccn 2-wire twisted pair bus communication issue anything that communicates with the cpu can have a random intermittent problem. Since these cars are getting older I have to think that there are other cars that are or will have similar issues. Pray to god that your throttle doesn't stick wide open like mine did. I had to keep my foot buried on the brake while I was screaming down the road until I was able to turn off the ignition. Have fun coming to a stop or driving home after that happens. Formally I was an i2c bus communications(2 wire bus) expert at both intel corp and cisco systems. I know what I am talking about. Today I talked with a bremerton Chrysler/Dodge/Jeep technical service representative about this issue. Bottom-line over $3000 to fix. There may have been somebody somewhere that is dead because of this factory defect and no one is the wiser. Why not a factory recall issue?.

See all problems of the 2005 Chrysler 300C 🔎.